AU2006284422B2 - Support cradle for rolled coils and other cylindrical objects - Google Patents

Support cradle for rolled coils and other cylindrical objects Download PDF

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Publication number
AU2006284422B2
AU2006284422B2 AU2006284422A AU2006284422A AU2006284422B2 AU 2006284422 B2 AU2006284422 B2 AU 2006284422B2 AU 2006284422 A AU2006284422 A AU 2006284422A AU 2006284422 A AU2006284422 A AU 2006284422A AU 2006284422 B2 AU2006284422 B2 AU 2006284422B2
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AU
Australia
Prior art keywords
pair
holes
rolls
support cradle
saddle
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AU2006284422A
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AU2006284422A8 (en
AU2006284422A1 (en
Inventor
R. Bruce Dement
Paul Werstler
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Kastalon Inc
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Kastalon Inc
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Priority claimed from US11/208,953 external-priority patent/US7448505B2/en
Priority claimed from US11/428,623 external-priority patent/US7708155B2/en
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Priority to AU2006284422A priority Critical patent/AU2006284422B2/en
Publication of AU2006284422A1 publication Critical patent/AU2006284422A1/en
Publication of AU2006284422A8 publication Critical patent/AU2006284422A8/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00Securing or covering of load on vehicles
    • B60P7/06Securing of load
    • B60P7/08Securing to the vehicle floor or sides
    • B60P7/12Securing to the vehicle floor or sides the load being tree-trunks, beams, drums, tubes, or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D45/00Means or devices for securing or supporting the cargo, including protection against shocks
    • B61D45/001Devices for fixing to walls or floors
    • B61D45/003Fixing of logs, beams, barrels, pipes, or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/66Containers, packaging elements or packages, specially adapted for particular articles or materials for jumbo rolls; for rolls of floor covering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Description

WO 2007/024388 PCT/US2006/028855 SUPPORT CRADLE FOR ROLLED COILS AND OTHER CYLINDRICAL OBJECTS BACKGROUND OF THE INVENTION The present invention is directed to a cradle unit, or supporting member, for supporting and storing coils, such as wound rolls or coils of long lengths of thin flat material made of steel, other metal, paper, or the like, which are processed, handled, stored and transported with the longitudinal axis of the coil oriented in the horizontal direction. When stored in their semi finished, in-process stage between operations, in their finished state awaiting shipment, or during actual shipment and final storage during actual use, these coils are placed in designated staging areas by supporting them on the floor, since allowing these coils to rest directly on the floor or other flat surface would produce highly-stressed loading at the tangential contact points. Even though these coils may be made of metal, they are relatively soft or pliable, and susceptible to damage from scratching, denting or surface-marking when they impinge upon debris on the floor or on another hard storage surface. Many locations where coils are stored are on floors that are not flat, tending to misshape or deform the coil over time. Coils may also be damaged from flattening or denting when set down during handling operations, or from excessive pressure or weight while sitting in storage due to single-point tangential and high surface-loading. This situation is exacerbated when coils are stacked during storage, which is common in the metals industries. Therefore, significant expense is incurred from the lost metal and rework of the damaged coils. Additionally, stacked coils, when stored on flat floors, represent a safety hazard from roll out of the bottom tier of the stack. This situation is hazardous to personnel, the facilities and the coils that would be affected by such a collapse of the stack. 1 2 There have been used a number of various techniques in an attempt to address the above-mentioned problems. Some of these techniques include: setting coils on rubber or fabric belting; using rubber or polyurethane pads with slight indentations to cradle the coil; using "V"-shaped blocks made of polyurethane, plastic, wood or metal; and unitized 5 skids of plastic, wood or metal, or other similarly constructed devices to contain or protect the coils. Polyurethane, rubber and plastic coil-support devices possess the ability to cushion the coil during set-down. These devices are typically molded or formed into a single unit, and do not provide suitable strength or structural integrity to support stacks of io coils without the use of additional, independent, and separate support structures. Wood supports are not resilient or durable, while metal fabricated supports do not cushion and offer a surface that is basically the same as a bare floor. Unitized fabrications of wood, plastic or steel are expensive to build, do not offer the durability and protection of a resilient support, and do not conform or adapt to uneven floor conditions. is An example of a prior-art support is disclosed in U.S. Patent No. 4,503,978 Smit, et al., and discloses a support for rolled coils made of polyethylene. The supports of this patent do not generally provide adequate structural support, and, therefore, are typically supported by U-shaped steel channels bolted to the floor, or other supporting surfaces, and are generally not conformable to a support under-structure. 20 Object of the Invention It is the object of the present invention to substantially overcome or ameliorate one or more of the disadvantages of the prior art. 25 Summary of the Invention The present invention provides a support cradle for supporting coils, rolls, and other cylindrical objects, comprising: a pair of parallel saddle elements made of a material in the hardness range of between 50 Shore A and 90 Shore D; 30 each said saddle element defining a bottom surface; each said saddle element comprising a concave upper surface upon which rests a portion of a coil or roll; said concave upper surface defining a central, lower curved section of a radius Rl, and a pair of terminal upper curved sections each of a radius R2 greater than RI, and a 3 pair of transitional sections, each said transitional section transitioning from said central, lower curved section to a respective one of said pair of terminal upper curved sections; a pair of parallel connecting elements, each said connecting element connecting corresponding portions of the said pair of saddle elements in order to form a rectilinear s shaped structure; each said saddle element comprising at least one pair of projecting members projecting from said bottom surface, for use in mounting the support cradle to a fixed support for preventing movement of the support cradle during the storage of coils, rolls, and other cylindrical objects thereon. 1o Preferably, said material from which said pair of parallel saddle elements is made is chosen from at least one of the following group: polyurethane, nylon, nyrim, polyethylene, rubber, nitrile, polychloroprene, chlorosulfonated polyethylene rubber, butyl, granulated and rebonded rubber, recycled plastics, recycled plastic/wood flour and other similarly formulated blends, polypropylene, and PVC. 15 Preferably, the above-described support cradle is used in combination with a pair of spaced-apart rail elements, each said rail element being affixed to an understructure; each said rail element having securing means for use in securing it to an understructure, and a series of spaced-apart holes, each said hole being capable of receiving therein a said projecting member of a said saddle element. 20 Preferably, said holes of said series of holes are equally-spaced along the respective said rail element, each said hole of said series of holes having a size greater than the size of a said projecting member so that a respective said projecting member is allowed movement therein, in order to accommodate the flexing and bending of a said support cradle under load. 25 Preferably, said concave upper surface defines a central, lower curved section of a radius RI, and a pair of terminal upper curved sections each of a radius R2 greater than RI, and a pair of transitional sections, each said transitional section transitioning from said central, lower curved section to a respective one of said pair of terminal upper curved sections; each said transitional region being defined by generating a number of circles of 30 different radii and from a varying center position pt[i] between the center points ptl and pt2 in a linear relationship using by the equation: pt[i] = ptl + (pt2 - ptl) / (r2 - rl) * abs(rl - r[i]), where pt[i] is a center point of a transitional circle and r[i] is the radius of the transitional circle, connecting the tangents of these generated circles form the curve of each transition region.
4 Preferably, said holes of series of holes of each said rail element are spaced equally apart such that said projecting members of a respective said saddle element may be received in a number of different holes of a respective said rail element for allowing different spacing between support cradles. 5 Preferably, each said saddle element is made of polyurethane of a hardness in the range of between 50 Shore A and 90 Shore D. The present invention further provides a method of supporting a plurality of support cradles used in supporting coils, rolls and other cylindrical objects where each support cradle comprises a pair of parallel saddle elements, with each said saddle element to comprising a concave upper surface defining a central, lower curved section and a pair of parallel connecting elements each connecting corresponding sections of said pair of saddle elements in order to form a rectilinear-shaped structure, said method comprising: (a) affixing a pair of rail elements to an understructure in a spaced apart manner; (b) loosely attaching a plurality of said support cradles to said rail elements such is that each said support cradle is supported by said pair of rail elements; (c) said step (b) comprising inserting projecting members projecting from the bottom surface of said parallel saddle elements into holes formed in said pair of said rail elements; (d) said step (c) comprising inserting said projecting members into holes such 20 that said projecting members are allowed a limited degree of movement in said holes in order to accommodate distortions induced in said support cradle under load conditions. Preferably, each said support cradle has a width approximately equal to the length of a connecting element of a said support cradle, said step (c) comprising mounting the projecting members of one saddle element in holes of one of the rail elements, and 25 mounting the projecting members of the other saddle element in holes of the other of the rail elements. The present invention also provides a support cradle for supporting coils, rolls, and other cylindrical objects, comprising: a pair of parallel saddle elements; 30 each said saddle element defining a bottom surface; each said saddle element comprising a concave upper surface upon which rests a portion of a coil or roll; a pair of parallel connecting elements, each said connecting element connecting corresponding portions of the said pair of saddle elements in order to form a rectilinear 35 shaped structure; 5 each said saddle element comprising at least one projecting member projecting from said bottom surface, for use in mounting the support cradle to a fixed support for preventing movement of the support cradle during the storage of coils, rolls, and other cylindrical objects thereon. 5 Preferably, said material from which said pair of parallel saddle elements is made is chosen from at least one of the following group: polyurethane, nylon, nyrim, polyethylene, rubber, nitrile, polychloroprene, chlorosulfonated polyethylene rubber, butyl, granulated and rebonded rubber, recycled plastics, recycled plastic/wood flour and other similarly formulated blends, polypropylene, and PVC. i0 Preferably, in combination with a pair of spaced-apart rail elements, each said rail element being capable of being affixed to an understructure; each said rail element having a series of spaced-apart holes, each said hole being capable of receiving therein a said projecting member of a said saddle element. Preferably, said holes of said series of holes are equally-spaced along the is respective said rail element, each said hole of said series of holes having a size greater than the size of a said projecting member so that a respective said projecting member is allowed a limited amount of free movement therein, in order to facilitate engagement and accommodate the flexing and bending of a said support cradle under load. Preferably, said concave upper surface defines a central, lower curved section of 20 a radius Rl, and a pair of terminal upper curved sections each of a radius R2 greater than RI, and a pair of transitional sections, each said transitional section transitioning from said central, lower curved section to a respective one of said pair of terminal upper curved sections; each said transitional region being defined by generating a number of circles of different radii and from a varying center position pt[i] between the center points ptl and 25 pt2 in a linear relationship using by the equation: pt[i] = ptl + (pt2 - ptl) / (r2 - rl) * abs(rl - r[i]), where pt[i] is a center point of a transitional circle and r[i] is the radius of the transitional circle, connecting the tangents of these generated circles form the curve of each transition region. Preferably, each said saddle element comprises at least a pair of said projecting 30 members projecting from said bottom surface for mounting in at least a pair of holes of said series of holes of a respective said rail element. Preferably, said holes of series of holes of each said rail element are spaced equally apart such that said pair of projecting members of a respective said saddle element may be received in a number of different holes of a respective said rail element 35 for allowing different spacing between support cradles.
5a Preferably, each said saddle element has a hardness range of between 50 Shore A and 90 Shore D. Preferably, each said saddle element is made of polyurethane of a hardness in the range of between 50 Shore A and 90 Shore D. 5 Brief Description of the Drawings A preferred embodiment of the present invention will now be described, by way of an example only, with reference to the accompanying drawings wherein: Figure 1 is an isometric view of the cradle unit for supporting a coil, roll, or other 1o cylindrical object in accordance with the invention; Figure 2 is a top view thereof. Figure 3 is a side, elevational view thereof; Figure 4 is an end view thereof; Figure 5 is an isometric view showing a series of cradle units of Fig. I being is used to support a tiered stack of coils or rolls; Figure 6 is an isometric view similar to Fig. 5 showing the force vectors acting on the coils or rolls and on the series of cradle units supporting the stack of coils or rolls; Figure 7 is an isometric view of a modification in which a series of cradle units of Fig. I are provided in one unitary structure for forming a rack for supporting a series of 20 coils, rolls, or other cylindrical objects in a row; Figure 8 is an end view thereof; Figure 9 is a side elevational view thereof; Figure 10 is an isometric view showing a series of cradle racks of Fig. 7 being used to support a plurality of stacked rows of coils or rolls; 25 Figure 11 is an isometric view of another modification of the cradle unit of Fig. 1 with the addition of a pair of end-pans serving as reservoirs for collecting lubricant draining from coils or rolls supported or stacked thereon; Figure 12 is a side elevational view thereof; WO 2007/024388 PCT/US2006/028855 Figure 13 is a top view thereof; Figure 14 is an end view thereof; Figure 15 is a side view of yet another modification of the cradle unit where each the cradle unit is provided with protruding metal pins for reception in openings of a pair of rails affixed to a floor, or the like, by which the cradle unit is retained in place and prevented from sliding movement; Figure 16 is a top view thereof; Figure 17 is an end view thereof; Figure 18 is a top plan view of a rail fixable to a floor or other understructure to a pair of which rails a cradle unit of Fig. 15 is secured; Figure 19 is a top plan view of a pair of rails of Fig. 18 affixed to a floor or other understructure and shown supporting and securing a plurality of cradle units of Fig. 15 in a spaced apart manner via the protruding metal pins of the cradle units received in openings of the rails; and Figure 20 is a side elevational view of Fig. 19. DETAILED DESCRIPTION OF THE INVENTION Referring now to the drawings in greater detail, and to Figs. 1-6 for now, there is shown a cradle unit 10 of the invention for supporting a coil, roll, or other large cylindrical object. The cradle unit 10 consists of a pair of parallel-arranged, identical end-cradle sections or saddles 12, 14 preferably made of polyurethane, in the hardness range of between 50 Shore A and 90 Shore D. The length of each end-cradle section or saddle 12, 14 depends upon the size or sizes of the coils or rolls to be supported. In one example, each end-cradle section is thirty three inches in length and three inches in width. Each end-cradle section or saddle 12, 14 defines an upwardly 6 WO 2007/024388 PCT/US2006/028855 facing concave supporting surface 16, 18 which consists of a first lower or main portion 16', 18', respectively, having a first radius RI, and second upper or tertiary end portions 16", 18" each having a second radius R2 that is greater than the radius RI. Connecting the surface-portion 16' or 18' with the portions 16" or 18" are transitional curvature-portions or regions 20, 22, respectively. The values of Ri and R2 will vary depending upon the size of coils or rolls to be supported. The value R1 corresponds to the radius of the minimal coil or roll to be supported by the cradle 10, while the value R2 corresponds to the radius of the maximal coil or roll to be supported by the cradle 10. In the example given above, the first radius Ri is twenty inches, while the second radius R2 is thirty six inches, with the height of each end-cradle section or saddle increasing from a minimum of one inch at the midpoint or center to a maximum of five inches at the extremity or end 24, 26. With regard to the transitional regions 20, 22, it is noted that the first lower or main portion 16', 18' and the second upper or tertiary end portions 16", 18" not only have different radii R1 and R2, but, of course, also have different points of centers ptl and pt2, respectively., The shape or curvature of each transition region 20, 22 is formed by generating a number of circles of different radii and from a varying center position pt[i] between the center points ptl and pt2 in a linear relationship. Using the equation: pt[i] = ptl + (pt2 - ptl) / (r2 - r1) * abs(rl r[i]), where pt[i] is a center point of a transitional circle and r[i] is the radius of the transitional circle, connecting the tangents of these generated circles form the curve of each transition region 20, 22. The cradle unit 10 also includes a pair of parallel-arranged steel angle-brackets 30, 32 which provide the inherent structural integrity to the unit. Each angle-bracket connects corresponding ends of the two end-cradle sections 12,14, as seen in Fig. 1. Each angle-bracket 7 WO 2007/024388 PCT/US2006/028855 30, 32 consists of a horizontal section 34 and a vertical section 36, with a respective end of a cradle unit being nestled therein. The right-angle brackets are bonded to the ends of the end cradle sections by conventional bonding techniques, whereby a flexible and adaptable rectilinear shaped structure is formed. In the above-mentioned example, the length of each angle bracket may be typically thirty-six inches, with the width of each of the horizontal and vertical sections typically being three inches, and typically made of 3/16" steel. Each horizontal section 34 may be provided with a pair of holes 46 for passing therethrough bolts for securing the cradle unit 10 to a floor or other under-structure. Referring to Fig. 5 and 6, it may be seen how a series of cradle units 10 may be used to support a tiered vertical stack of rows of coils or rolls 40. The force vector diagram depicts coils C1 through C8 stacked on the coil cradle units 10 of the invention. The loads are calculated as if the stack continues on to the left of the diagram. Each coil shown has been assumed to be of a 72" O.D. and a weight W. Because of the stacking, the downward force W splits into the two vector forces WL and WR. For purposes of clarity, only coil C2 has been shown with the forces labeled. On the middle row, the forces acting on coil C4 are its weight W plus WR from coil Cl and WL from coil C2. The resultant force, 2-W, is drawn using vector addition. The forces acting on coil C5 are its weight W plus WR from coil C2. The resultant force is drawn using vector addition. On the bottom row, the forces acting on coil C6 are its weight W plus 2- WR from coil C3 and 2- WL from coil C4. The resultant force, 3-W, is drawn using vector addition. The forces acting on coil C7 are its weight W plus 2- WR from coil C4 and WL from coil C5. The resultant force is drawn using vector addition. The forces acting on coil C8 are its weight W plus 2- WR from coil. The resultant force is drawn using vector addition. On the bottom row, lines are drawn from the center of the coils to the edges of the ends 24, 26 of the cradle units. If the resultant 8 WO 2007/024388 PCT/US2006/028855 force vectors remain in between these lines, the stack will be stable, assuming that the coils in the stack are frictionless and not considering inertia. In actual use, the stack could be stable even if this limit were somewhat exceeded. Because of the provision of two separate upper curved sections of different radii RI and R2 for each cradle unit, multiple layers of coils of different diameter may be more safely stacked, as shown in Figs. 5 and 6. Referring now to Figs. 7-10, there is a shown a modification in which a series of cradle units 10 are provided to form a rack 50 of cradles for supporting a plurality of individual coils thereon end-to-end to form a ladder-like structure. The rack 50 consists of a plurality of cradle elements 52 similar to the end-cradle sections 12, 14 of the cradle unit 10, which cradle sections 52 are interconnected together by a pair elongated steel angle-brackets 54, 56 similar to the angle-brackets 30, 32 of the cradle unit 10 of Fig. 1. The spacing between the cradle elements 52 is generally less than the spacing between the end-cradle sections or saddles 12, 14 of the cradle unit 10. Whereas the spacing between the cradle sections 12, 14 in one example cited above is thirty inches, the spacing between adjacent cradle elements 52 is 15-1/4 inches, so that, not only variously-sized rolls or coils of different diameters may be supported and stored on the rack 50, but also coils or rolls of different lengths may be supported thereby. In addition, owing to the series arrangement of cradle sections 52, the placing of a coil or roll on the rack 50 may be achieved at any portion along the length thereof thereby allowing facility of placement and storage. A plurality of racks 50 may be employed in parallel formation, as shown in Fig. 10, in order to allow for support and storage of multiple, stacked rows of coils or rolls 40. The spacing between racks 50 is dependent upon the size of the coils or rolls 40 to be supported. Each individual rack 50 is bolted to the floor or under-structure by bolts passing through the angle brackets, in the same manner described above with reference to the cradle unit 10. In addition, 9 WO 2007/024388 PCT/US2006/028855 oil pans similar to oil pans described hereinbelow with reference to Figs. 11-14, may also be used for collecting oil, or other fluid. It is noted that the individual rolls or coils are supported end-to-end, with their longitudinal axes being parallel to the length of the rack, whereby the rack 50 supports them in the manner that has hithertofore only been done using a coil pad. Thus, the rack 50 serves the dual function of acting as cradle supports and as a coil pad. Referring now to Figs. 11-14, there is shown another modification 60 of the cradle unit 10 in which a pair of oil-collecting pans or reservoirs 62, 64 are provided at the ends of the cradle unit in order to collect oil or other lubricant or fluid seeping or draining out from the ends of the coil supported thereby. These pans provide for the containment of the fluid to prevent contamination of the surrounding environment, and provide for safe, easy recovery and disposal of the liquid. Each oil-collection pan 62, 64 is preferably formed integrally with the respective cradle section 12, 14, and typically has a width of twelve inches and a length of two feet. Each pan 62, 64 is provided with an upstanding lip or rim 62', 64' for containing the oil. The rest of the cradle unit 60 is substantially identical to the cradle unit 10. The cradle of the invention adapts readily and inherently to the contour of the underlying support structure or floor, with the spacing between the angle-brackets and between the saddles providing a self-adapting unitary structure, so that uneven or contoured floors will not adversely affect the support provided by the cradle of the invention. Moreover, the inherent resiliency of the material used in the saddles offer shock-absorption characteristics. While the preferred material for the saddles has been indicated as being polyurethane, other, comparable or equivalent material may be used instead, or composites thereof, as long as these other materials are within the same hardness range of between 50 Shore A and 90 Shore D. Some of these other materials are, for example: nylon; nyrim; polyethylene of all molecular 10 WO 2007/024388 PCT/US2006/028855 weights (ultra high, high density, medium density, low density, copolymers, homopolymers); rubber such as SBR, EPDM, nitrile, Neoprene (polychloroprene), natural, Hypalon (chlorosulfonated polyethylene rubber), butyl; granulated and rebonded rubber; and recycled plastics; recycled plastic/wood flour or other similarly formulated blends; polypropylene; vinyl (PVC). While specific dimensions have been given hereinabove, it is to be understood that these have been given only by way of example. The actual dimensions may vary depending upon the lengths and diameters of the coils or rolls intended to be supported. While the transition regions 20, 22 have been described as having shape or contour described hereinabove, it is to be understood that other methods for producing the shape or contour thereof may employed, as well other different shapes and curvature. In a variation of the support cradle, the end-cradle section or saddle 12, 14 defines an upwardly-facing concave supporting surface 16, 18 which consists of a first lower or main portion 16', 18', respectively, having a first radius R1 of about 18 inches, second upper or tertiary end portions 16", 18" each having a second radius R2 of about 36 inches, with the height of each end-cradle section or saddle increasing from a minimum of 1-1/2 inches at the midpoint or center to a maximum of 8-1/2 inches at the extremity or end 24, 26. Referring now to Figs. 15-20, there is shown another modification 68 of the cradle unit. This version has especial relevance for the storage of coils, rolls, and the like, on the floor of a truck during transportation thereby, although it is intended for use in all storage environments and locations, whether mobile or fixedly stationary. In order to take into account moments and forces tending to dislodge or displace the support cradles during normal use and loading, there are provided at least one pair of longitudinal rails mounted to the floor of the truck, as shown in 11 WO 2007/024388 PCT/US2006/028855 Figs. 18-20. The pair of rails 70, 72 are spaced apart on the floor or other understructure by a distance that accommodates the width of the support cradle unit 68, which width is defined in the direction between the saddles 82 of the cradle unit or alternatively by the length of each connecting brace 90, 92. In the preferred embodiment, this spacing is either thirty or thirty-six inches, as taken between the outer surfaces 70', 72' of the rails. Each rail 70, 72 is provided with a first series of pairs of holes or openings 76, 78 by which screws or bolts permanently affix the rails a floor. There are also provided a second series of equally-spaced apart holes or openings 80 by which support cradles are connected to the rails. The cradle unit 68 is similar to the saddle units of the other embodiments described hereinabove, with the exception of the addition of a pair of spaced apart metal pins 84, 86 formed in each of the cradle sections or saddles 82. Each metal pin 84, 86 has a projecting or protruding bottom section 84', 86' provided in and projecting from the bottom surface 82' of a saddle 82, which projecting sections 84', 86' are received in respective openings of the series of the openings 80 of the rails 70, 72. The openings 80 are of a larger diameter than that of the pins 84, 86 so that the protruding bottom sections 84', 86' are loosely received in the holes 80 in order to allow a limited degree of movement. This loose mounting of the pins in the openings 80 is done because, during normal loading of the support cradles with coils, the cradle units experience flexing and bending whereby the distance between the center lines of the pins 84, 86 tend to change, This loose fitting accommodates such flexing and bending. In the preferred embodiment, each metal pin 84, 86 is approximately 4-7/16 inches in length and has a diameter of approximately 7/8 of an inch, with a projecting portion 84', 86' that project outwardly from the bottom surface 82' of approximately 7/16 of an inch. Each metal pin is mounted in a respective saddle by first drilling a hole, and then inserting and adhesively 12 WO 2007/024388 PCT/US2006/028855 securing a pin in the hole. In the preferred embodiment, the holes 80 of the rail elements have a diameter of approximately 1-1/16 inches, which, given the 7/8 inch diameter of each metal pin 84, 86, allows an approximately 1/16 of an inch play or movement of the pin in a hole, which is more than adequate to allow for the changes in spacing between pins 84 or 86 during flexing and bending under full-load conditions. As mentioned above, the spacing between the two fixed rails 70, 72 is equal to the width of the cradle unit 68. Also in the preferred embodiment, the length of each rail is approximately 239-7/8 inches a width of three inches, and a thickness of inch. The spacing between holes 80 is approximately five inches, center to center. Also in the preferred embodiment, the spacing between the pins of one saddle and the spacing between the pins of the other saddle are approximately thirty inches, center to center. The width of the cradle unit may be approximately 30 inches or 36 inches, which is equal to length of each of the parallel-arranged steel braces 90, 92. It is, also, noted that in this modification, the parallel-arranged steel braces 90, 92 are not angle-brackets, as in the other embodiments described above, but are just straight elements connecting the pair of saddle supports 82 at portions of the saddle supports above the bottom surfaces 82' thereof, so that the projecting pins 84, 86may be used for mounting the cradle unit 68 in the rails 70, 72, in the manner described hereinabove. Also, in the preferred embodiment, the radius R1 for cradle unit 68 is eighteen inches and the radius R2 is thirty-six inches. The transition region is determined using the same method described hereinabove with reference to the embodiment of Fig. 1. While the pins 82, 84 have been indicated as being metal, it is to be understood that other, equivalent materials may be used. In addition, the above-listed dimensions have been given only by means of example and are not to be construed to be limiting. Moreover, while the projecting 13 WO 2007/024388 PCT/US2006/028855 members have been described as pins, other equivalent members may be used instead, it being understood that the projecting members are not to be construed to exclude other equivalent members or manners for mounting the saddles in the holes of the rail elements for a limited degree of movement therein. While specific embodiments of the invention have been shown and described, it is to be understood that numerous changes and modifications may be made therein without departing from the scope and spirit of the invention as set forth in the appended claims. 14

Claims (14)

  1. 2. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 1, wherein said material from which said pair of parallel saddle elements is made is chosen from at least one of the following group: polyurethane, nylon, nyrim, polyethylene, rubber, nitrile, polychloroprene, chlorosulfonated polyethylene 25 rubber, butyl, granulated and rebonded rubber, recycled plastics, recycled plastic/wood flour and other similarly formulated blends, polypropylene, and PVC.
  2. 3. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 1, in combination with a pair of spaced-apart rail elements, each said rail element being affixed to an understructure; each said rail element having 30 securing means for use in securing it to an understructure, and a series of spaced-apart holes, each said hole being capable of receiving therein a said projecting member of a said saddle element.
  3. 4. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 3, wherein said holes of said series of holes are equally-spaced 3S along the respective said rail element, each said hole of said series of holes having a size 16 greater than the size of a said projecting member so that a respective said projecting member is allowed movement therein, in order to accommodate the flexing and bending of a said support cradle under load.
  4. 5. The support cradle for supporting coils, rolls, and other cylindrical s objects according to claim 1, wherein said concave upper surface defines a central, lower curved section of a radius RI, and a pair of terminal upper curved sections each of a radius R2 greater than RI, and a pair of transitional sections, each said transitional section transitioning from said central, lower curved section to a respective one of said pair of terminal upper curved sections; each said transitional region being defined by generating 10 a number of circles of different radii and from a varying center position pt[i] between the center points ptl and pt2 in a linear relationship using by the equation: pt[i] = ptl + (pt2 ptl) / (r2 - rl) * abs(rl - r[i]), where pt[i] is a center point of a transitional circle and r[i] is the radius of the transitional circle, connecting the tangents of these generated circles form the curve of each transition region. 15 6. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 4, wherein said holes of series of holes of each said rail element are spaced equally apart such that said projecting members of a respective said saddle element may be received in a number of different holes of a respective said rail element for allowing different spacing between support cradles. 20 7. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 1, wherein each said saddle element is made of polyurethane of a hardness in the range of between 50 Shore A and 90 Shore D.
  5. 8. A method of supporting a plurality of support cradles used in supporting coils, rolls, and other cylindrical objects, where each support cradle comprises a pair of 25 parallel saddle elements, with each said saddle element comprising a concave upper surface defining a central, lower curved section and a pair of parallel connecting elements each connecting corresponding sections of said pair of saddle elements in order to form a rectilinear-shaped structure, said method comprising: (a) affixing a pair of rail elements to an understructure in a spaced apart manner; 30 (b) loosely attaching a plurality of said support cradles to said rail elements such that each said support cradle is supported by said pair of rail elements; (c) said step (b) comprising inserting projecting members projecting from the bottom surface of said parallel saddle elements into holes formed in said pair of said rail elements; 17 (d) said step (c) comprising inserting said projecting members into holes such that said projecting members are allowed a limited degree of movement in said holes in order to accommodate distortions induced in said support cradle under load conditions.
  6. 9. The method according to claim 8, wherein each said support cradle has 5 a width approximately equal to the length of a connecting element of a said support cradle, said step (c) comprising mounting the projecting members of one saddle element in holes of one of the rail elements, and mounting the projecting members of the other saddle element in holes of the other of the rail elements.
  7. 10. A support cradle for supporting coils, rolls, and other cylindrical 10 objects, comprising: a pair of parallel saddle elements; each said saddle element defining a bottom surface; each said saddle element comprising a concave upper surface upon which rests a portion of a coil or roll; 15 a pair of parallel connecting elements, each said connecting element connecting corresponding portions of the said pair of saddle elements in order to form a rectilinear shaped structure; each said saddle element comprising at least one projecting member projecting from said bottom surface, for use in mounting the support cradle to a fixed support for 20 preventing movement of the support cradle during the storage of coils, rolls, and other cylindrical objects thereon.
  8. 11. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 10, wherein said material from which said pair of parallel saddle elements is made is chosen from at least one of the following group: polyurethane, 25 nylon, nyrim, polyethylene, rubber, nitrile, polychloroprene, chlorosulfonated polyethylene rubber, butyl, granulated and rebonded rubber, recycled plastics, recycled plastic/wood flour and other similarly formulated blends, polypropylene, and PVC.
  9. 12. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 10, in combination with a pair of spaced-apart rail elements, 30 each said rail element being capable of being affixed to an understructure; each said rail element having a series of spaced-apart holes, each said hole being capable of receiving therein a said projecting member of a said saddle element.
  10. 13. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 10, wherein said holes of said series of holes are equally 35 spaced along the respective said rail element, each said hole of said series of holes having 18 a size greater than the size of a said projecting member so that a respective said projecting member is allowed a limited amount of free movement therein, in order to facilitate engagement and accommodate the flexing and bending of a said support cradle under load. 5 14. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 10, wherein said concave upper surface defines a central, lower curved section of a radius RI, and a pair of terminal upper curved sections each of a radius R2 greater than RI, and a pair of transitional sections, each said transitional section transitioning from said central, lower curved section to a respective one of said pair of 10 terminal upper curved sections; each said transitional region being defined by generating a number of circles of different radii and from a varying center position pt[i] between the center points ptl and pt2 in a linear relationship using by the equation: pt[i] = ptl + (pt2 ptl) / (r2 - rl) * abs(rl - r[i]), where pt[i] is a center point of a transitional circle and r[i] is the radius of the transitional circle, connecting the tangents of these generated circles IS form the curve of each transition region.
  11. 15. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 13, wherein each said saddle element comprises at least a pair of said projecting members projecting from said bottom surface for mounting in at least a pair of holes of said series of holes of a respective said rail element. 20 16. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 15, wherein said holes of series of holes of each said rail element are spaced equally apart such that said pair of projecting members of a respective said saddle element may be received in a number of different holes of a respective said rail element for allowing different spacing between support cradles. 25 17. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 11, wherein each said saddle element has a hardness range of between 50 Shore A and 90 Shore D.
  12. 18. The support cradle for supporting coils, rolls, and other cylindrical objects according to claim 16, wherein each said saddle element is made of polyurethane 30 of a hardness in the range of between 50 Shore A and 90 Shore D.
  13. 19. A support cradle substantially as hereinbefore described with reference to Figures 15 to 20 of the accompanying drawings. 19
  14. 20. A method of supporting a plurality of support cradles used in supporting coils, rolls and other cylindrical objects, said method being substantially as hereinbefore described with reference to any one of the embodiments as that embodiment is shown in the accompanying drawings. 5 Dated 19 March 2009 Kastalon, Inc. Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON
AU2006284422A 2005-08-22 2006-07-24 Support cradle for rolled coils and other cylindrical objects Ceased AU2006284422B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2006284422A AU2006284422B2 (en) 2005-08-22 2006-07-24 Support cradle for rolled coils and other cylindrical objects

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US11/208,953 2005-08-22
US11/208,953 US7448505B2 (en) 2005-08-22 2005-08-22 Support cradle for rolled coils and other cylindrical objects
AU2005215663A AU2005215663B2 (en) 2005-08-22 2005-09-27 Support cradle for rolled coils and other cylindrical objects
US11/428,623 US7708155B2 (en) 2005-08-22 2006-07-05 Support cradle for rolled coils and other cylindrical objects
US11/428,623 2006-07-05
AU2006284422A AU2006284422B2 (en) 2005-08-22 2006-07-24 Support cradle for rolled coils and other cylindrical objects
PCT/US2006/028855 WO2007024388A2 (en) 2005-08-22 2006-07-24 Support cradle for rolled coils and other cylindrical objects

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AU2006284422A8 AU2006284422A8 (en) 2008-07-17
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CA (2) CA2744926C (en)
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WO2014066989A1 (en) * 2012-11-02 2014-05-08 Carego Innovative Solutions, Inc. Warehouse-related method and facility
CA2795624A1 (en) * 2012-11-02 2014-05-02 Martin Boni Warehouse-related method
WO2015172242A1 (en) 2014-05-15 2015-11-19 Carego Innovative Technologies Inc. Method for stacking welded tube
US11429916B2 (en) 2018-02-27 2022-08-30 Carego Tek Inc. Facility for processing steel
CN110304343A (en) * 2019-07-30 2019-10-08 中冶赛迪重庆信息技术有限公司 It is a kind of for storing the detachable saddle of scroll
DE202020105666U1 (en) * 2020-10-02 2022-01-07 Liebherr-Werk Nenzing Gmbh Stacking device for lattice boom crane elements

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BRPI0606661A2 (en) 2009-07-07
AU2006284422A8 (en) 2008-07-17
CA2744926A1 (en) 2007-03-01
AU2006284422A1 (en) 2007-03-01
WO2007024388A3 (en) 2007-07-05
CA2584306A1 (en) 2007-03-01
MX2007005414A (en) 2007-08-23
CA2744926C (en) 2013-04-30
CA2584306C (en) 2012-05-22
WO2007024388A2 (en) 2007-03-01

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